Paper-cutting machine



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l mull Patentd July 15, 1890'.

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G. SEYBOLD.

PAPER CUTTING MACHINE. No. 432,088.

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O. SEYBOLD.

PAPER CUTTING MACHINE.

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(No Model.)

0. SEYBOLD. PAPER'OUTTING MACHINE.

Patented July 15, 1890 (No Model.) 4Sheets-Sheet 4.

G. SEYBOLD. PAPER GUTTING MACHINE.

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UNITED STATES PATENT OFFICE.

CHARLES SEYBOLD, OF CINCINNATI, OHIO.

PAPER-CUTTING MACHINE.

QIECIFICATION forming part of Letters Patent No. 432,088, dated. July 15, 1890.

' Application filed January 14, 1889. Serial No. 296,312. (No model.)

To aZZ whom, it may concern.-

Be it known that I, CHARLES SEYBOLD, a citizen of the United States, and a resident of the city of Cincinnati, county of Hamilton, and State of Ohio, haveinvented certain new and useful Improvements in Paper'Cutting Machines, of which the following is a specification.

The object of my invention is to provide a paper cutting machine in which both the clamp and knife shall be operated by power and independently of each other.

The various other features and advantages of my machine will become apparent from the following specification and claims and from the accompanying drawings, forming part of this specification, in which Figure 1 is a front view of my improved cutting-machine. Fig. 2 is a top view of the mechanism for operating the clamp and knife, the table and upper parts of the machine being removed and the sides of the machine being in section. Fig. 3 is a side View of my machine-that is, the side opposite the side at which power is applied. Fig. 4 is an end view of the gage-carrier, the table being shown in section. Fig. 5 is a sectional View of the knife, knife-bed, and knife and clamp. Fig. 6 is a view of the mechanism for automatically reversing the knife-bed carrying the knife. Fig. 7 is a View of the clutch, sliding collar, clutch-band hub, the, and miter-wheel (the parts being partly in section) for operating the clamp downward. Fig. 8 is a plan View of the miter-wheel, &c.,shown in Fig. 7, parts thereof being, however, in section. Fig. 9 is a plan view of one of the miter-wheels, clutch, andclutch-lever. Fig. 10 is an end view of the wheel shown in Fig. 9, and Fig. 11 is a top view of the miter-wheel shown in Figs. 0 and 10. Fig. 12 is a side view of the lower or clampoperating shaft and accompanying parts, and the shifting mechanism for throwing the lower clutch in and out to 0p crate the clamp of the machine. Fig. 13 is a top View of the treadle mechanism, the connecting or upright rods being shown in cross- .Fig. 14 is an end view of the mechanism shown in Fig. 12, the lower clutch and shaft being shown in section; and Fig. 15 is a view in section of the point of connection between the rod N and arm N the section being taken at the line 15 of Fig. 14.

A A represent the sides or side castings of the machine, which are preferably formed as shown, and are connected by a center crosspiece A and atop piece A and also by guiderods A A.

B represents the front table, and B the back table. The side castings A A are provided at their upper portions with the elongated slots 3 Directly below these slots B beneath the plane of the table, are cut the slots 13*.

C represents the knife-bed, to which the knife C is hinged in any suitable manner.

D represents the clampavhich maybe made of any preferred form.

The knife-bed C is hung and swings on the arms C 7 D represents the shaft which operates the knife and knife-bed, and D the shaft which operates the clamp. The shaft D is formed with a left-hand screw-thread, and the shaft D with a right and left hand screw-thread. The shaft D carries at one end a fiy-wheel 1D and the tight and loose pulleys D" and D The fiy-wheel D tight pulley D and miterwheel E are all mounted on a sleeve E, (see Fig. 1,) so as to operate together. The shafts D and D are journaled in each side of the machine, passing through the side A, and are then journaled and supported in arms E E on a journal-bracket The shaft D carries the two vertical miter-wheels E and E and the shaft D the two vertical miter-wheels E and E". g

F represents a short vertical shaft (see dott-ed lines in Fig. 1) carrying at each end a miter-wheel F, which mesh with the miterwheels E, E, E and E, and thus power is transmitted from the lower shaft D This gearing runs loose unless the clutch mechanism is thrown in. The clutch mechanism for the upper or knife-operating shaft is thrown in and out through the medium of the shifter F by working the handle F in the proper direction. The clutch mechanism for the lower or clamp-operating shaft D is thrown in and out by operating the foot-treadle G. A screwthreaded nut II travels forward and backward on the screw-threaded portion of the shaft D. This not H has two side arms I-I". (See particularly Fig. These side arms H are connected at each side to the sliding guide-rods H which guide-rods keep the nut 11 from twisting and also guide it. On each side of this nut H on the side arms H are pivotally connected the long arms H At their opposite ends these long arms H are pivotally connected to the lower end of the connecting-link H and to the upper ends of the curved links H. These points of connection are made in any suitable manner. The lower ends of these curved links H are connected pivotally to the side A of the machine at H. The link H at its upper end is connected to the knife-bed C in any convenient manner.

The knife-bed C and clamp D are preferably constructed of the form shown, but may be modified. I

As stated before, D represents the knifeoperating shaft. lVhen motion is transmitted to said shaft by throwing the clutch into the miter-wheel E by means of handle F which is worked to the right, the nut H is forced to travel forward on said shaft, as are also the arms H and they being connected to links H and curved links H, said links are forced outward and downward, thus bringing down the knife-bed carrying the knife 0 on the paper to be cut and cutting same.

The knife-bed and knife are reversed as follows: On one of the sliding guide-rods H is connected the finger K. This finger K has an eye which encircles the shifting-rod K. On said shifting-rod is attached a lug K against which the coiled spring K, which encircles said rod K, rests. To the side A of the machine I attach pivotally at K a pawlarm K (see particularly Fig. 6,) which pawlarm is of the peculiar shape shown in said figure. Through the upper end of said pawlarm I pass the adjustment-screw K, held in proper position by the lock-nut K The foot L of this pawl-arm K works in and out'of the recess L. (See dotted lines in Fig. 1.) \Vhen the nut H moves forward and the knife is coming down, the sliding rods H which are connected to said nut H by arms H, are also moving forward, carrying with them the finger K, and said finger, being securely connected on said sliding rod H consequently pushes against the spring K and places a tension upon it. WVhen the knife has made its proper cut and has descended far enough, the knife-bed O strikes the head of the screw K on the pawl-arm K and therefore throws the said pawl-arm K out of the recess L, into which said pawl-arm had fallen when the knife came down. Thus the tension on spring K is relieved, pulling the shifting-rod K inward, and consequently throwing the clutch into the miter-wheel E, turning shaft D in the opposite direction, forcing the nut H backward and forcing the knife-bed and knife upward. This reversal of the knife is therefore accomplished automatically.

As stated before, the lower shaft D operates the clamp I), which shaft is operated by the lower set of gearing, to which motion is transmitted by the shaft F. (See Fig. 1.) This shaft D is screw-threaded right and left, as shown. The screw-threaded nuts M work forward and backward on this screw-threaded shaft D and each is provided with the side arms ll These side arms M encircle and travel on the rods A, so as to guide the nuts M and keep them from twisting. To the top of these nuts M are loosely connected the links M (See Fig. 1.) At their opposite ends these links M are loosely connected to the lower corner of the bell-cranks M which bell-cranks are loosely connected to the center piece A of the machine. At their outward corners these bell-cranks M have attached to them at M (see dotted lines in Fig. 1) the lower ends of the connecting-rods M These connecting-rods are loosely connected at their upperends at M to the clamp D.

I will now describe how the clamp is brought down. The clutch must be thrown into the wheel E by operating the treadle G. This turns the shaft indicated by the arrows on said miter-wheel E. The shaft being thus operated, the nuts M are forced to travel inward or toward each other, and traveling inward they force the bell-cranks downward and inward through the agency of the links M thus pulling the connecting-rods M and consequently clamp D downward until it reaches and clamps the work. Then the clutch is thrown into the miter-wheel E, the screw-shaft D revolves in an opposite direction and the nuts M travel outward or from each other, and consequently, through the agency of bell-cranks M and links M force the clamp D upward.

The movements of the clamp and the mechanism for operating'it are regulated, preferably, by the following devices, viz: To one end of the treadle G is suitably connected one end of an upright rod N, which arm works loosely through an eye in the end of arm N, which is connected to the center piece A of the machine. Toward its upper end this rod N has attached to it in any preferred manner the peculiarly-shaped arm N Preferably the rod N passes through an eye in one end of said arm N and is held in place by a thumb-screw, key, or the like. At its rear end this arm N is attached in a similar manner to a connecting-rod N (see dotted lines in Figs. 1 and 3,) which rod is in turn pivotally connected to the long bars N N The bar N is pivotally connected at N 6 to the side A of the machine, and the bar at N to the lug P 011 the shifting-rod P. A coiled spring P extends from the table B, to which it is attached, to an extension P on the treadle G. The miter-wheels E, E, E and E are of the peculiar shape shown in Figs. 9, 10, and 11, and the clutch being also of the form shown in said figures. (Also shown in Figs. 7 and 8.) The miter-wheel F, is, however, somewhat differently constructed. In it I provide a series of pins B. These pins R are placed in recesses R in the hub of the miterwheel and rest against a small spring R in said recess. This spring R is present, so that should the finger S perchance in its inward movement strike one of the said pins said spring will keep said pin from moving back too far, and also prevent said finger S from being jarred or broken. This finger S is at tached to the sliding clutch-collar S in any convenient manner, and is provided with an offset S (See Fig. 7.) This offset catches or falls into a notch Y in the clutch-band hub Y. (See Fig. 7.)

Having now described the devices for regulating the movements of the clamp and mechanism for operating it, I shall now describe how said devices work. iVhen it is desired to bring down the clamp D, the operator places his foot on the treadle G, presses it downward, and shifts it to the right until the lug G rests under the forked arm G". (See Fig. 2.) By this movement the rod N is pulled downward, and as the peculiar-shaped arm N is connected theretoat one end by a pin nor the like (see Figs. 14 and 15) working in an elongated slot a, (see Figs. 14 and 15,) which slot is longest in a line with the 1 length of said arm N it also travels downward, and, owing to the presence of said slot 01' in the arm N a slight lateral or oscillating movement is imparted to the arm N, so as to allow the treadle Gr to be worked to the right or left, and also to assist in bringing down the arms N and N and the arm N whose lower end is connected to the back end of the arm N is also pulled down. Consequently the arms N and N to which the upper end of arm N is connected, are pulled down, and the arm N being connected to the shifter P, pushes said shifter outward, and consequently throws the clutch into the miter-wheel E", thus operating the shaft D forcing the nuts M- to travel inward, and, consequently, through the medium of the links M bell-cranks M and links M, bringing down the clamp D. )Vhen the clutch has thus been thrown into the miter-wheel E, the finger S, which is attached to the sliding clutch-band S, has also been forced inward, and its offset S has fallen into the notch Y in the clutch-band hu-b Y and is traveling around with the clutch and miterwheel E. \Vhen the clamp reaches the work and clamps it, the pressure on the clamp-operatiug parts stops the shaft D The miterwheels, however, continue to revolve, and when one of the pins R strikes the fingerS it throws it up and out of the notch Y in the clutch-band hub Y, throwing the sliding clntch collar to the center through the agency of 'the spring P on which there is a tension, which has been produced by the treadle being forced downward when the clutch was thrown in and said parts are held in this position, provided the lug G 011 the treadle G rests against one of the forked arms G, as shown in Fig. 2,

because the spring P which is at a tension still, cannot lift up the treadle to its normal position. As the work is now clamped, I may at any time move the treadle back into its normal position, as shown in dotted lines in Fig. 2that is, away from under the fork G"thus allowing the spring P to pull up the treadle, and consequently the rod N and arms N and N thus pulling long rod N upward and inward, moving the shifter P inward, and throwing the clutch into the miter-wheel E revolving the shaft D and forcing the nuts M to travel outward and away from each other, and, through the agency of links M bell-cran ks M an d links M, forcing the clamp to ascend. If it is desired to stop the clamp D in its upward movement, the screw P is so set in the lug N (see Fig. 1) on the shiftingrod P that the lug P on the link M (see Fig. 1) in its backward movement will strike said screw P and thus, through the medium of the shifting-rod P, throw the clutch-sliding collar out of the miter-wheel E and to the center, thus stopping the clamp D. By this means time is saved, as I need not wait until the clamp D has ascended to its utmost before bringing it down again.

I shall now set forth some of the other advantages of my machine. I hinge the knife 0 to the bed-plate C in any convenient manner, preferably by hinges S By this con struction the knife may be turned up, as shown in dotted lines in Fig. 5, and honed. The gage is shown at the left hand in Fig. 3, and partly in Fig. l. Partly this gage is formed similar to the angle-gage T now in use, as is also the finger-gage T. This gage is operated forward and backward on the screw T passin through the screw-threaded nut T. Said screw T is operated by turning the hand-wheel T The remaining parts of said gage, consisting of bifurcated portion WV, being V-shaped on its upper surface, and the V-shaped recesses in which it travels, pin WV and the spring VW, and the adjustment of the finger-gage T and connecting parts, form the subject-matter of a separate application for Letters Patent. This gage is brought up to the work by operating the screw T in the proper direction, traveling in the V-shaped groove in the table B until the work is gaged. It is operated away from the work in the same manner. hen the finger-gage T is used, it is brought down, as shown in dotted lines in Fig. 3, and passed through slots in the table B',as is now customary in paper-cutting machines.

Y represents a slidingage clamp-piece (see Figs. 1 and 5) held in position by a spring (See Fig. 5.) It slides down and up in the clamp D and is a part of it. By using it time can be saved when one sheet is to be cut or only'a few sheets, or when it is desired to cut at a certain line quickly on said sheets, as it may bepulled down to said line on the sheet to be out, thus gaging the descent of the clamp D to the proper position on the sheet.

ITO

The clamp D may then be lowered, and when down on the sheet said clamp and gage clamppiece Y will be in the same plane and in the same Vertical position. The knife may then be brought down to make the cut.

The operation of the clamp and its connections and knife and its connections has been described heretofore, and it will be seen from these descriptions that the clamp and knife work independently, which feature has not heretofore been accomplished in power papercutting machines. It will also be seen that the clamp can be regulated at the will of the operator and that the knife is reversed automatically after making the cut. The means for accomplishin g these results have been specifically described and shown; but they may be altered and changed and equivalent devices used in their place or places.

The various features herein shown and described are preferably used together; but

parts of them may be employed in paper-cutting machines of a form different from the one herein specifically set forth.

What I claim as new and of my invention, and desire to secure by Letters Patent, is

1. In a paper-cutting machine, shaft D, nut H, arms H connected to links which are connected to the knife-bed C, knife 0, shaft D nuts M, links M bell-cranks M links M, clamp D, and connecting and operating mech anism, substantially as described.

2. In a paper-cutting machine, shaft D, screw-threaded, as specified, nut II, arms H connected to the knife-bed C, links H knife C, pawl-arm K, shifter K, and means for operating said shifter, substantially as set forth.

3. In a paper-cutting machine, shaft D, nut H, knife 0, and connection between said knife and nut, consisting of arms H links H and H in combination with sliding guiderods I1 substantially as set forth.

at. In a paper-cutting machine, shaft D, nut Il,knife C, and connections between said knife and nut, consisting of arms H links H and H in combination with sliding guiderods H shifter K, lug K, spring K and operating mechanism, substantially as set forth.

5. In a paper-cutting machine, shaft D nuts M, links M bell-cranks 1W links M clamp D, and operating mechanism, substantially as set forth.

6. In a paper-cutting machine, shaft D clamp D, nuts M, connections between said nuts and clamp, in combination with a miterwheel,as E, having pins R, and peculiarlyshaped clutch-band hub, and finger S, substantially as set forth.

7. In a paper-cutting machine, two screwthreaded shafts, screw-threaded nuts traveling thereon, suitable connections between said nuts and the knife and clamp of the machine, in combination with two sets of miterwheels, substantially as shown, and suitable shifting mechanism, substantially as specified.

S. In apaper-cutting machine, shaft D nuts M, clamps D, connections between said nuts and clamp, and arms M on said nuts sliding on guide-rods, as A, substantially as set forth.

CHARLES SEYBOLD. Witnesses:

JNo. \V. STREHLI, E1). STREHLI. 

